package com.dzu.gulimall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.dzu.common.utils.PageUtils;
import com.dzu.common.utils.Query;
import com.dzu.gulimall.product.dao.AttrGroupDao;
import com.dzu.gulimall.product.entity.AttrEntity;
import com.dzu.gulimall.product.entity.AttrGroupEntity;
import com.dzu.gulimall.product.service.AttrGroupService;
import com.dzu.gulimall.product.service.AttrService;
import com.dzu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.dzu.gulimall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


/**
 * @author ZhaoDong
 */
@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
    @Autowired
    private AttrService attrService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catalogId) {
        String key = (String) params.get("key");
        // select * from pms_attr_group where catalog_id = ? and ( attr_group_id = key or attr_group_name like %key%)
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if (StringUtils.isNotEmpty(key)) {
            wrapper.and( obj -> {
                obj.eq("attr_group_id",key).or().like("attr_group_name",key);
            });
        }

        if (catalogId == 0) {
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        } else {
            wrapper.eq("catalog_id", catalogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);

        }
    }

    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatalogId(Long catalogId) {
        // 1、查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catalog_id", catalogId));
        // 2、查询所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(item -> {
            AttrGroupWithAttrsVo attrGroupWithAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(item, attrGroupWithAttrsVo);
            List<AttrEntity> relationAttr = attrService.getRelationAttr(attrGroupWithAttrsVo.getAttrGroupId());
            attrGroupWithAttrsVo.setAttrs(relationAttr);
            return attrGroupWithAttrsVo;
        }).collect(Collectors.toList());

        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
        AttrGroupDao dao = this.getBaseMapper();
        List<SpuItemAttrGroupVo> list = dao.getAttrGroupWithAttrsBySpuId(spuId, catalogId);

        return list;
    }

}
